Window-sash pulley



(Mod e1.)

H. A, WILBUR.

WINDOW SASH PULLBY.

No. 306,983. Patented Oct. 21, 1884.

Phn xrlithognphcr. Washington. D. C.

UNITED STATES PATENT OFFICE.

HENRY A. \VILBUR, OF CAMBRIDGE, ASSIGNOR OF ONF-HALE TO FRANK XV. LOWE,OF BOSTON, MASSACHUSETTS.

WlNDOW-SASH PULLEY.

SPECIFICATION forming part of Letters Patent No. 306,983, dated October21, 1884.

Application filed May 22, 1883.

My invention consists of a sash-pulley frame in which the ends throughwhich the screws to secure it to the window-frame pass are elongated andmade narrower than the main portion of the front of the pulley-frame,and of about the same width with the main body of the pulley-frame inwhich the pulley is journaled,

the obj ect being to adapt the sash-pulley to bc fitted in a mortise inthe frame, which mortise is made by a machine that makes the recess orrabbet for the side flange of the pulleyframe, and also makes the recessor rabbet for the extended and reduced ends, all in one and the samemachine, which machine is made the subject of an application of evendate with this.

My invention is illustrated in the accompanying drawings, in whichFigure 1 is a front or face view of my improved sash -pulley. Fig. 2 isa rear view, and Fig. 3 is a side view.

a is the main body or casing of the pulleyframe in which the pulley isjournaled, and b is the flange at the front or face of the said frame. 7

Instead of extending the flange entirely around the main body orcontinuing the same (ModeL) width beyond the main body, I curve theflange to the points d, and then extend the flange, as 3 5 shown at 0,making it about the same Width as that of the main body a of thesash-pulley frame, and thus enable it to be fitted exactly in themortise and recess made by the machine above referred to. The advantageof 0 this mode of construction is that I am enabled to accurately fitthe sash-pulley to a mortise and rabbet made by the machine above named.the rabbet being long enough for the ends of the pulley-flange to allowthe screws to enter 5 the wood without splitting it.

\Vhat I claim as my invention is- A window-sash-cord guide composed ofthe casing a, having face-flanges b b, of a length equal to that of themain casing, and the ex- 50 tended ends a c, of a width equal to that ofthe main casing and less than that of the flange, and of semicircularconfiguration at the end, the end pieces, 0, being connected with theflanges b b by means of arcs of a circle whose 5 5 diameter is equal tothe faceplate, including the flange, whereby the said casing can beinserted in a router-mortise, as described.

In testimony whereof I have signed my name to this specification in thepresence of two sub- 60 scribing witnesses.

HEN BY A. WILBUR.

\Vitnesses:

J. H. ADAMS, F, \V. LOWE.

